Warm greetings from the Roku Community, @Jcoopp!
We'd be happy to provide further information about the compatibility of a TCL Roku remote with a Sharp TV.
Firstly, please be informed that TCL and Sharp TVs manufacture their own remotes that work well with their player hardware. We can't guarantee it will work as long as they run the same operating system but there's no harm in trying.
Let us know if you need further clarification and assistance as we'd be more than happy to continue doing so.
Happy Streaming!
Best regards,
Carly
Carly Y.
Roku Community Moderator